Thank you, and I'm glad the visual evolution landed!
You found a real bug: when Instinct wanted to Dash while Dash was recharging, it would fire seconds later in a random direction. That's fixed in the next update. Predators also get a bit tougher in the later tiers, and spikes make them back off rather than die instantly.
Thanks for playing all 5.5 hours, and for the very detailed feedback!